261  
CDUS43 KLOT 202233  
CLIRFD  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CST TUE FEB 20 2018  
 
   
...............................
 
 
   
..THE ROCKFORD IL CLIMATE SUMMARY FOR FEBRUARY 20 2018
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
CLIMATE NORMAL PERIOD 1981 TO 2010  
CLIMATE RECORD PERIOD 1905 TO 2018  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
..............................................................
 
 
TEMPERATURE (F)  
TODAY  
MAXIMUM 50 1203 AM 69 2017 36 14 69  
MINIMUM 35 359 PM -22 1929 19 16 45  
AVERAGE 43 28 15 57  
 
PRECIPITATION (IN)  
TODAY 1.19R 0.96 2011 0.05 1.14 0.06  
MONTH TO DATE 3.08 0.93 2.15 0.39  
SINCE DEC 1 4.91 4.28 0.63 4.52  
SINCE JAN 1 4.42 2.30 2.12 2.64  
 
SNOWFALL (IN)  
TODAY MM 3.2 1993 0.2 MM 0.0  
MONTH TO DATE 17.4 5.8 11.6 T  
SINCE DEC 1 28.1 27.3 0.8 16.8  
SINCE JUL 1 28.3 29.1 -0.8 16.8  
 
DEGREE DAYS  
HEATING  
TODAY 22 37 -15 8  
MONTH TO DATE 905 807 98 605  
SINCE DEC 1 3503 3381 122 3028  
SINCE JUL 1 4717 4716 1 3897  
 
COOLING  
TODAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 0 0 0 0    
..............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (290)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION W (290)  
AVERAGE WIND SPEED 6.1  
 
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 1.0  
 
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
HEAVY RAIN  
RAIN  
LIGHT RAIN  
FOG  
FOG W/VISIBILITY <= 1/4 MILE  
 
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 1200 AM  
LOWEST 92 200 PM  
AVERAGE 96  
   
......................................................
 
 
 
THE ROCKFORD IL CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 36 67 2017  
MINIMUM TEMPERATURE (F) 20 -10 1963  
 
 
SUNRISE AND SUNSET  
FEBRUARY 20 2018......SUNRISE 645 AM CST SUNSET 535 PM CST  
FEBRUARY 21 2018......SUNRISE 644 AM CST SUNSET 537 PM CST  
 
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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